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BUThe Only Backend Roadmap You Need: First Principles by Sriniously.
@builders.central
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30Трендовые Reels
(12)
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SUWhy are you still writing backend API’s?..
@supabasecom
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IIComment “playlist” for the link !
This is one of the best playlist if you want to learn backend from scratch!
[backend , engineering , http , routing , authentication , authorization , api , databases , rest apis , cache , queues , logging ]
#backend #iitian
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GAJá marca seu amigo SABOORR sênior aí kkkkkk
#meme #humor #sabor #dev #tech #frontend #backend #linux
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COFaah sound if there are any errors in the terminal..
#programming #coding #backend #viral #reels
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MIBackend concepts you should know 👇🏻
Comment "link" to get this document in Dm
Core Concepts
1. What is an API
2. REST vs GraphQL
3. HTTP methods (GET, POST, PUT etc)
4. HTTP status codes (2xx, 4xx, 5xx)
5. Stateless vs Stateful APIs
6. Authentication vs Authorization
7. Session-based auth vs JWT
8. OAuth 2.0 (Login with Google, GitHub, etc.)
9. Rate limiting vs Throttling
10. Idempotency (especially for payments)
⸻
Databases & Data Handling
11. SQL vs NoSQL — when to use what
12. Indexes and how they speed up queries
13. ACID properties
14. Transactions & isolation levels
15. Database normalization vs denormalization
16. Pagination (offset vs cursor-based)
17. Sharding & partitioning
18. Read replicas & write scaling
19. Handling duplicate records
20. Optimistic vs pessimistic locking
⸻
Caching & Performance
21. What is caching and where to cache
22. Cache eviction strategies (TTL, LRU)
23. Cache consistency & stale cache problems
24. CDN and edge caching
25. Why cache can make systems wrong
⸻
Distributed Systems & Scaling
26. Load balancing (round-robin, least connections, hashing)
27. Horizontal vs vertical scaling
28. Microservices vs monoliths (trade-offs)
29. Service-to-service communication (sync vs async)
30. Message queues (Kafka, RabbitMQ, SQS)
⸻
Reliability & Real-World Problems
31. Exactly-once vs at-least-once processing
32. Retries, timeouts, and circuit breakers
33. Handling race conditions
34. Distributed locking
35. Event-driven architecture
36. Saga pattern (distributed transactions)
37. Graceful degradation
38. Observability (logs, metrics, tracing)
39. Deployments (blue-green, rolling)
40. Handling traffic spikes & viral load
#BackendEngineering #SystemDesign #softwareengineering #softwareengineer #techcareers
(backend interview preparation, system design concepts, API basics, backend engineering roadmap, software engineering interviews)
@mission_compile
318.1K
HI1. CORS (Most common)
Browsers block requests coming from a different origin (domain, port, or protocol).
Example:
Frontend: http://localhost:3000
Backend: http://localhost:5000
Postman ignores CORS, but browsers enforce it.
2. Missing Authentication Headers
Postman sends them manually, but your browser request might not.
Check your fetch / axios headers.
3. Wrong HTTP Method
Your browser request might be GET but your API expects POST or PUT.
Postman allows you to set it explicitly.
4. Preflight Requests (OPTIONS)
Browsers send an OPTIONS request first for some cross-origin calls.
If your server does not handle OPTIONS properly, the request fails.
5. Cookies / Credentials Issue
If your API relies on cookies or sessions, Postman doesn’t have the same cookie restrictions.
6. HTTPS vs HTTP
Browsers enforce secure requests more strictly.
Example problem:
Frontend: HTTPS
Backend: HTTP
Browser may block it.
7. Content-Type Issues
Browser requests may not send correct headers.
Content-Type: application/json
Postman often sets it automatically.
🐞How to debug?
1. Open Browser DevTools
Open your browser and go to:
F12 → Network tab
Trigger the API request from your frontend.
Check:
• Request URL
• Method (GET / POST)
• Status code
• Request headers
• Response headers
• Response body
Most issues become visible here.
2. Look at the Console
Open the Console tab.
Common errors you might see:
CORS error
Mixed content error
401 Unauthorized
Blocked by browser security policy
3. Check if the Browser Sends an OPTIONS Request
In the Network tab, see if there is an OPTIONS request before the actual API call.
Browsers send this preflight request to check permissions.
If your backend doesn’t handle it, the request fails.
4. Compare Headers with Postman
Open the same request in Postman and compare:
• Authorization header
• Content-Type
• Cookies
• Request body
Sometimes Postman sends headers automatically that your frontend does not.
5. Log Requests on the Server
Add logs in your backend to see if the request even reaches the server.
@highonnknowledge
399.3K
NIcomment “backend” and I’ll share all the links!
#computerscience #tech #jobs #backenddeveloper #explore
@nishayadav.io
5.7M
YA#demo #backend #frontenddeveloper #manager #qa
@yaroslavkulakov
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BLN8n + Overleaf + Claude = 🔥🔥🔥
Completely Automated Resume with this AI Workflow✨
1) Input note with a form.
2) Fill job description and resume text.
3) Execute the engine.
4) Uses Claude AI as backend, re-defines resume. (Complex optimisation prompt embedded here)
5) generate your resume text.
6) Connects to Overleaf, create a Latex project.
7) Renders your Latex code.
8) Gives final updated resume as PDF.
✅ Workflow will be open-source soon!
Stay Tuned :)
#resume #overleaf #n8n
@blurred_ai
200.1K
MREasiest Way to understand frontend backend communication!
Comment to get the links to the resources!
@mrdhamani
766.9K
TOHTML parece fácil. A confiança está lá em cima.
CSS te coloca no seu lugar com problemas de alinhamento.
JavaScript traz erros que você ainda não entende.
Aí vem o MERN.
Frontend, backend, banco de dados, autenticação — tudo de uma vez.
APIs falham, CORS te bloqueia, JWT testa sua paciência.
Você acha que o projeto está pronto…
e então o deploy quebra tudo.
Funciona localmente, trava online.
Cada passo não apenas aumenta a dificuldade,
ele eleva sua mentalidade.
Se você está enfrentando dificuldades, você não está atrasado.
Você só está subindo de nível.
@tony.nunnes
✨ Руководство по #Backend
Instagram содержит 3.4 million публикаций под #Backend, создавая одну из самых ярких визуальных экосистем платформы.
#Backend — один из самых популярных трендов в Instagram прямо сейчас. С более чем 3.4 million публикаций в этой категории, создатели вроде @yaroslavkulakov, @codekarlo and @gardinidev лидируют со своим вирусным контентом. Просматривайте эти популярные видео анонимно на Pictame.
Что в тренде в #Backend? Самые просматриваемые видео Reels и вирусный контент представлены выше.
Популярные Категории
📹 Видео-тренды: Откройте для себя последние Reels и вирусные видео
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🌟 Избранные Создатели: @yaroslavkulakov, @codekarlo, @gardinidev и другие ведут сообщество
Часто задаваемые вопросы о #Backend
С помощью Pictame вы можете просматривать все реелы и видео #Backend без входа в Instagram. Учетная запись не требуется, ваша активность остается приватной.
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Исследовать Backend#backend developer salary 2026#python backend frameworks#top backend programming languages#backend development frameworks#backend meme#orion stars backend#backend developer server architecture diagram#backend database management